121361892 has 48 divisors (see below), whose sum is σ = 311055360. Its totient is φ = 36656928.

The previous prime is 121361837. The next prime is 121361893. The reversal of 121361892 is 298163121.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (121361893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6328 + ... + 16815.

It is an arithmetic number, because the mean of its divisors is an integer number (6480320).

Almost surely, 2^121361892 is an apocalyptic number.

121361892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121361892 is an abundant number, since it is smaller than the sum of its proper divisors (189693468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121361892 is a wasteful number, since it uses less digits than its factorization.

121361892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23192 (or 23190 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 121361892 is about 11016.4373551525. The cubic root of 121361892 is about 495.1013525756.

It can be divided in two parts, 12136 and 1892, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 121361892 in words is "one hundred twenty-one million, three hundred sixty-one thousand, eight hundred ninety-two".